*{
    margin: 0;
    padding: 0;
}
.sf-head{
    display: flex;
    margin-top: 20px;
}
.sf-zi{
    font-size: 15px;
    margin-left: 150px;
}
.sf-fan{
    margin-left: 10px;
}
.sf-main>img{
    width: 300px;
    margin-left: 35px;
    margin-top: 30px;
}